Marathi - MARC language code - Library of Congress (LCCP)
Margin (STED)
Marimba (WDAA)
Maritime (SHCU)
Marker - Chromosome (STED)
Maroon - Philately
Burgundy - NCIC item color code (NCIC)
Macroaddress Register
Magnetic Amplifier Relay
Main Admitting Room (STED)
Maine Association of Retirees (EARSL)
Maintainability Action Request (MCD)
Maintenance Action Request
Maintenance Analysis Report (MCD)
Maintenance and Refurbishment (MCD)
Maintenance and Repair
Major Acquisition Review (CTAS)
Major Aircraft Review - Navy
Major Area of Responsibility
Major Assembly Release - Military (AABC)
Malfunction Array RADAR
Managed Approach Reservoir - FAA (TAG)
Management Analysis Report - DoD (MCD)
Management and Administration Regulations (HEAS)
Management Assessment Report (MCD)
Management Assessment Review (MCD)
Management Assistance Review (SAUO)
Management Attainment Report - USDA Forest Service (ALAC)
Manistee & Repton R. R. - AAR code
Manufacturing Action Request (MCD)
Manufacturing Assembly Report (IAA)
Maracaibo - Venezuela - Airport symbol (OAG)
Maranello - NCIC car model code
Marasmus (STED)
Marathi - GeoNet three-character language code (GEON)
Marcade Group, Inc. - NYSE symbol (COMM)
March (AFM)
March Helicopters Ltd. - British - ICAO designator (FAAC)
Marcia - NCIC car model code
Maremont Corporation (SAUO)
Marghi Central - Language code (ETLW)
Margin (DAVI)
Mar-Gold Resources - Vancouver Stock Exchange symbol
Marian Minerals - Vancouver Stock Exchange symbol
Marimba - Music
Marina - GeoNet geographic features code (GEON)
Marina (automobile) - NCIC car model code
Marine (MSA)
Maritime
Maritime Administration Report - Department of Commerce
Maritime Central Airways
Market
Marlin - NCIC car model code
Marlin Firearms Co. - NCIC firearms make code (NCIC)
Maroon - NCIC item color code (NCIC)
Marquette - Diocesan abbreviation - Michigan (TOCD)
Marquis - NCIC car model code
Married
Marriott International - NYSE symbol (SPSG)
Marrow (STED)
Marseilles - France - Seismograph station code, US Geological Survey - Closed (SEIS)
Marshal (ROG)
Marshall Field Site (SAUO)
Martial - Roman poet of the first century AD (ROG)
Marvel Industries, Montreal, QC - Manufacturer code for watercraft hull identification number (USCG)
Mass Accumulation Rate - Geology
Massachusetts College of Art, Boston, MA - OCLC symbol (OCLC)
Master Angular Reference (IAA)
Master of Arts in Religion
Master of Arts in Research
Material Availability Report - NASA (KSC)
Material Availability Request
Matrix Attachment Region - Genetics
Maximal Aggregation Ratio (STED)
Mean Annual Runoff - Long-term average streamflow expressed on a per-unit-area basis (GIS)
Medication Administration Record - Medicine
Memory-Address Register - Computer science
Mercury Arc Rectifier (IAA)
Meso American Reef (NOAA)
Michigan Association of Realtors (EARSL)
Microanalytical Reagent
Microprogram Address Register
Mid-Air Retrieval (MCD)
Mid-Atlantic Ridge - of sea floor
Middeck Accommodations Rack (SAUS)
Minimal Angle Resolution
Minimally Attended RADAR (MCD)
Minimum Acceptable Rate of Return (MHDW)
Minimum Acceptable Reliability
Minimum Angle of Resolution (MCD)
Miscellaneous Apparatus Rack (IAA)
Missing at Random (IDAI)
Mission Analysis Report (SAUO)
Mission Analysis Representative
Mississippi-Atchafalaya River - System (USDC)
Mixed Antiglobulin Reaction (STED)
Modernization and Associated Restructing (SAUO)
Modernization and Restructuring - Weather Information Management System, US Fire Service
Monoclonal Antibody Resistant - Immunochemistry
Monoclonal Antibody to Rat (DB)
Montana Administrative Register - A publication (AAGC)
Montana Association of Realtors (EARSL)
Morocco - ANSI three-letter standard code (CNC)
Movimento di Azione Rivoluzionaria - Revolutionary Action Movement - Italian (PD)
Movimiento de Accion Revolucionaria - Revolutionary Action Movement - Mexico (PD)
Multi-Adversity Resistance - to root rot - Plant pathology
Multifunction Array RADAR
Multiple Aberration Region - Genetics
Multiple Access Receiver (ACAE)
Multiple Access Relay
Multiple Access Return (SSD)
Multiple Array RADAR (IAA)
Municipal Association Record - A publication
Muscarinic Acetylcholine Receptor - Biochemistry
Mythology of All Races - A publication
Superior Court Mandatory Arbitration Rules (SAUO)
Tacoma, WA - Location identifier - FAA (FAAL)
March (BEE)
March's English King's Bench Reports - 1639-42 - A publication (DLA)
Marine (DIAR)
Marion Laboratories, Inc.
Marius - of Plutarch - Classical studies (OCD)
Marshall and Sevestre's Appeals - 1862-64 - Bengal, India - A publication (DLA)
Marshall's Circuit Court Reports - United States - A publication (DLA)
Marshall's Reports - Kentucky - A publication (DLA)
Marshall's Reports - Ceylon - A publication (DLA)
Marshall's Reports - Bengal - A publication (DLA)
Martin's Louisiana Reports - A publication (DLA)
Martin's North Carolina Reports - 1 North Carolina - A publication (DLA)
Marvel's Reports - Delaware - A publication (DLA)
Mary (Queen of England) (DLA)
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